I borrowed it from school (turns out the IT department bought two, without an idea for their use in mind, so they've been sitting in a cupboard). I'm just playing with it to see if it's worth buying one for Roger-X, since his "need" for internet access is growing. If this is a relatively basic model, then I'll probably be quite happy getting one for him.

The 4G's are, IIRC, 7" models, which have been phased out. The smallest netbooks you can get now are 9" models, starting at $200 USD for models with lower-capacity solid state disks and about $250 for models with higher-capacity hard drives. The particular model I like is the 1000HA, which sells for about $350. It packs a 10" screen, 92% keyboard, 1GB RAM, 160GB HDD, and Intel Atom n270 processor. But as I've said, I'm waiting for the GN40 :P

TBH, the chassis are the same size, they just put a smaller screen in the 7" (resulting in a lighter weight, of course), unless that's what you mean by "tininess". Don't think I'm trying to turn you away from the 7" models, because my friend who has a 9" had a 7" before that, and it was still a great portable. I think his was the 701 model with 4GB SSD. He had an 8GB SDHC card that he put videos on, and used the SSD for his OS (Windows XP + a few programs WILL fit on just under 4GB).